Patents by Inventor Kazuto Yamamura

Kazuto Yamamura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8555691
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: October 15, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Yasushi Kurisu, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Patent number: 8327680
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: December 11, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Yasushi Kurisu, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Patent number: 8307687
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 13, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Yasushi Kurisu, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Patent number: 8069697
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: December 6, 2011
    Assignee: Nippon Steel Corporation
    Inventors: Yasushi Kurisu, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Publication number: 20110219849
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Applicant: Nippon Steel Corporation
    Inventors: Yasushi Kuriso, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Publication number: 20110219843
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Applicant: Nippon Steel Corporation
    Inventors: Yasushi Kurisu, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Publication number: 20110219848
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Applicant: Nippon Steel Corporation
    Inventors: Yasushi Kurisu, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Publication number: 20070017272
    Abstract: A metal plate material hot molding apparatus is provided for press molding a heated metal plate material. The apparatus may include supply piping for a cooling medium in a mold, and ejection holes penetrating from a molding surface of the mold to the supply piping. The exemplary apparatus may also include discharge piping for the cooling medium situated in the mold, and discharge holes penetrating from the molding surface of the mold to the discharge piping, and cooling piping. Molding procedure can be performed while the cooling medium is ejected from the ejection holes to a gap between the metal plate material and the mold.
    Type: Application
    Filed: September 28, 2004
    Publication date: January 25, 2007
    Inventors: Yasushi Kurisu, Yoshiaki Shia, Kazuto Yamamura, Yuuichi Ishimori, Hiroyuki Mitake, Tetsuo Shima, Hiroshi Fukuchi, Norimasa Yamasaki
  • Patent number: 7147033
    Abstract: A twin-drum continuous casting apparatus for casting a metal sheet (4) by supplying molten metal (3) to a pouring basin formed by a pair of cooling drums (1) rotating in opposite directions, and side gates (2), to cool the molten metal (3) by contact with surfaces of the cooling drums (1), thereby forming a solidified shell. The cooling drum (1) is formed from a drum body (11) having shaft portions at opposite end portions, and a drum sleeve (10) fitted on an outer peripheral portion of the drum body (11). Also, means is provided for preventing various adverse influences due to differences in thermal expansion of constituent members of the drum body (11) during casting. Thus, the reliability of the apparatus is increased, and the quality of casting is improved.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: December 12, 2006
    Assignees: Mitsubishi Heavy Industries, Ltd., Nippon Steel Corporation
    Inventors: Keiichi Yamamoto, Ritsuo Hashimoto, Mitsuo Tani, Kazutoshi Yokoo, Jyoji Yusa, Kunimasa Sasaki, Katsuyoshi Miyake, Katsuyuki Isogami, Mamoru Yamada, Tsuyoshi Tanaka, Takashi Arai, Tadahiro Izu, Keiji Tsunenari, Kazuto Yamamura, Hiroshi Izaki
  • Patent number: 6649860
    Abstract: A transferred plasma heating anode for heating a molten metal in a container by applying Ar plasma generated by passing a direct current through the molten metal, the transferred plasma heating anode comprising; an anode, composed of a conductive metal, that has an internal cooling structure, a metal protector having an internal cooling structure that is placed outside the anode with a constant gap between the anode and the protector, and a gas supply means that supplies an Ar-containing gas to the gap, is characterized by the central portion on the external surface of the anode tip end being inwardly recessed.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: November 18, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Takeshi Kawachi, Kazuto Yamamura, Hiroyuki Mitake, Junichi Kinoshita, Katsuhiro Imanaga, Masahiro Doki, Yoshiaki Kimura, Teruo Kawabata
  • Publication number: 20020170701
    Abstract: A twin-drum continuous casting apparatus for casting a metal sheet (4) by supplying molten metal (3) to a pouring basin formed by a pair of cooling drums (1) rotating in opposite directions, and side gates (2), to cool the molten metal (3) by contact with surfaces of the cooling drums (1), thereby forming a solidified shell. The cooling drum (1) is formed from a drum body (11) having shaft portions at opposite end portions, and a drum sleeve (10) fitted on an outer peripheral portion of the drum body (11). Also, means is provided for preventing various adverse influences due to differences in thermal expansion of constituent members of the drum body (11) during casting. Thus, the reliability of the apparatus is increased, and the quality of casting is improved.
    Type: Application
    Filed: July 5, 2002
    Publication date: November 21, 2002
    Inventors: Keiichi Yamamoto, Ritsuo Hashimoto, Mitsuo Tani, Kazutoshi Yokoo, Jyoji Yusa, Kunimasa Sasaki, Katsuyoshi Miyake, Katsuyuki Isogami, Mamoru Yamada, Tsuyoshi Tanaka, Takashi Arai, Tadahiro Izu, Keiji Tsunenari, Kazuto Yamamura, Hiroshi Izaki
  • Publication number: 20020134766
    Abstract: A transferred plasma heating anode for heating a molten metal in a container by applying Ar plasma generated by passing a direct current through the molten metal, the transferred plasma heating anode comprising; an anode, composed of a conductive metal, that has an internal cooling structure, a metal protector having an internal cooling structure that is placed outside the anode with a constant gap between the anode and the protector, and a gas supply means that supplies an Ar-containing gas to the gap, is characterized by the central portion on the external surface of the anode tip end being inwardly recessed.
    Type: Application
    Filed: August 10, 2001
    Publication date: September 26, 2002
    Inventors: Takeshi Kawachi, Kazuto Yamamura, Hiroyuki Mitake, Junichi Kinoshita, Katsuhiro Imanaga, Masahiro Doki, Yoshiaki Kimura, Teruo Kawabata
  • Patent number: 6371900
    Abstract: A cooling drum for a twin-drum continuous casting machine is capable of ensuring an excellent drum body interior cooling effect and advantageously overcoming both the problem of wear of the cooling drum end portions that are pressure-contacted with, and slide on, the side dams and the problem of their local deformation, and that, as a result, can ensure long-term maintenance of a suitable pressure-contact sliding state between the side dams and the cooling drum so as to enable stable continuous casting over a prolonged period. The cooling drum comprises a drum body portion of a material having a thermal conductivity of 100-400 W/mK and drum end portions part or all of whose portions in pressure-contact with the side dams and/or part or all of whose inner regions are formed of a reinforcing material that is a high-hardness material having a Vickers hardness HV (250 g) of 300-600.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: April 16, 2002
    Assignee: Nippon Steel Corporation
    Inventors: Yasushi Kurisu, Kazuto Yamamura, Katsumi Ando, Keiji Tsunenari, Chihiro Yamaji
  • Patent number: 6079480
    Abstract: A twin drum-type continuous casting process for casting thin cast strip by solidifying molten steel continuously fed between a pair of cooling drums placed parallel to each other, wherein the cooling drums are given an added degree of concave crown such that a solid fraction at the thickness center of the thin cast strip, when the distance from the edges toward the center of the thin cast strip at the closest position of the cooling drums is within 50 mm, is exhibited which is a value greater than the fluid critical solid fraction, or alternatively the cooling rate near the edges of the cooling drums is improved.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: June 27, 2000
    Assignee: Nippon Steel Corporation
    Inventors: Hideki Oka, Takashi Arai, Masafumi Miyazaki, Kazuto Yamamura, Mamoru Yamada